/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/JSP_Servlet/Servlet.java to edit this template
 */
package cn.edu.just.secondwebapp.servlet.api;

import cn.edu.just.secondwebapp.daoimpl.PersonDaoImpl;
import cn.edu.just.secondwebapp.entity.Person;
import cn.edu.just.secondwebapp.util.DatabaseConnectionUtil;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author JUST
 */
@WebServlet(name = "QueryPerson", urlPatterns = {"/servlet/api/QueryPerson"})
public class QueryPerson extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            request.setCharacterEncoding("utf-8");
            String fuzzyKey = request.getParameter("fuzzykey");
            if(fuzzyKey==null){
                fuzzyKey="";
            }
            DatabaseConnectionUtil dcu = new DatabaseConnectionUtil();
            PersonDaoImpl personDao = new PersonDaoImpl(dcu.getConnection());
            List<Person> persons  = personDao.findAll(fuzzyKey);
            
            Gson gson = new GsonBuilder().setDateFormat("yyyy年MM月dd日").create();
            String data = gson.toJson(persons);
            out.println(data);
        }catch(Exception e){
            out.println("{\"success\":false,\"msg\":\"error info\"}");
        }finally{
            if(out!=null){
                out.close();
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
